Improvement in winding-stop foe weight-clocks



0. H. wooDwQRTAH.

, Clock Stop. No. 78,170. Patented May 19, 1868.

O. H. WOODWOfRTH, OF COLUMBIA CITY, ,I NDIANA.

Letters Patent Na. 78,170, dated May 19,' 1868 aateated'Ma-t/ 7, 1868.,

mrnovsunnr IN WINDINe-srorzron WE'IenT-oLocKs.

@Ligi flgebub mimo in in flgm irinu uteut :mt making @trt ni .flgz nima.

Be it known that I, O II. Woonwon'rn, of Columbia City, in the county of Whitley, in the State'of Indiana, have invented a new and i'mproved Winding-Stop for Weight- Clocks; and I -do hereby declare that the following is a full and exact description thereof, reference being hifd to the accompanying drawings, and to the letters of reference'marked thgreon. p

The nature of my inrention consists in'attachingfto and using in connection with the `movementor works of an ordinary weight-clock, ajwnding stop, so arranged and -applied that the ascending motion of the clockweight, when being wound up, shall stop the winding of the clock at 'the desireddpoint in the'asce'nt of the weight, in such a manner as to prevent the weihtor weights from being wound up too closely and tightly, and there'by eifectually prevent rthe breaking of the elock-cords, as well as the frequeutly injurious efi'ects upop the pulley atthe top of the clock, and upon the striking, running, ror alarlnmachnery of the clock, caused by the quite common Practice' of wining up the weights too closely and tightly. i A

To enable others'skilled in the art of clock-making to make and use my invention, I will proceed to describe its construction and operation.

In the drawing, F-shows the frame or caeeof theeloek, to the back, B, of Vwhich is shown fastened, in the ordinary way, by scr'ews, buttons, or otherwise, the bottom (or rear) plate of a common brass clook-movement, shown at P. The drawing shows buta part of said plate.

rn is the main winding-shaft ofithe clock, in position in plate P. X shows a portion of the main wheel, throughlthe centre of which loosely passes the shaft 'n in the usual manner. a is the ordinary winding-rat chet,- used in connection with the common winding-pawl a and pawl-spring C is the common winding-eord, passing from shaft n up over pulley S, and Sustaining the weight,` W. l i

Now, to'apply the aseending motion of the weight to the' stopping of the winding of the clock, as before mentioned, I attach firmly to'shaft 'n the disk or wheel m, provided with oneor more wiuding-stops o,- as shown. I also attach to plate P the stoppin'g-pawl u, which moves freely on the pivot or rivet, by which it is loosely but securely attached 'to plateP. The winding-stops, o, and the stopping-pawl, u, must beV made in a-substantial manner. I also connect the arm A of stopping-pawl u to the elevating-rode, by means of the connecting-rod,

` wire, or cord r, as shown.v The elevating-rod e is jointed loosely at`one end to the inside of the'back, B, of the clock-case, and at z' forms a small loop for its connection with rod r, and, extending under the pulley S, forme a larger loop, as shown at g, down through which passes cord C to weight W. i

Operation: The weight being run down, the rods e and r and the pawl in the Positions shown, and the winding-,shaft n being supposed to be held to its place by the proper bearing in the upper 4or front plate of the' mowement (which plate is not shown, for obvious' reasons,) at t, we apply the winding-key at and, turning in the direction of the arrow, wind up the weight until it strikes and presses upward the elevating-rod e toward pulley' S, as indicated bythe dotted line. 'The asoending motion of weight W, by thus pressing upward the rod e, and rod e being connected to stopping-pawl u by4 the rod r, as shown, thereby thro'ws the point of stopping-pawl u toward shaft n, which, being' turned in'the direction of the arrow, brings one of the stops a'against thepoint'of pawl u, tiiereby stopping the winding of the clock at the desired point of the yweight's ascending motionl The pin p is driven into the inside of the back of the case to support the rod o, and preventit from falling too low as the weight runs down.

The eonn'ectingfrod r is generally a small spring wire, somewhat crooked, to render it elastic,'and thereby prevent tension on rod e and pawl u. v A r It will be seen that rod r can be readily adjusted in-rlength', and rod e in its nearuess to'pulley S, so as to permit the weight to be wound up very nearly to the pull'ey, and'yet not toubh iti in fect,`by this invention, the weight is made to stop its own ascent at any point desired. v

It is well known that the cords in weight-cicoka ore frequently broken by winding up the weights too tightly, and that the cases of eloeks are sometimes seriously injured by the falling of th'e'fweights, when the cords orpulleys are broken bywining up the weights too closely. It is also well known 4that 4whena weightecl'ock iswouml too olosely, and the cords or pulleys are not broken, the movements or Works of the clock 'areinj urionsly affected rby the great amount of strain thus cmmunicate to them. The injuriousxefi'ects thus produced exhibit themselves in the .ben'ling or breaking of the oogs, ratc ht-pawl, or ratchet-te'eth, the loosening of the movement from its fastenings, the rapid wearing away of the journals or pirots, and their bearings, to. These anll other injurios efi'ects are produced on both the running and striking-sies of weight-cicoka of`.the ordinary'kind, by the quite common practice of winding l up the` weights too .elosely a-n tightly. i i 't l It'will be seen that my invention obviates these dihculties and dangers, by causing the ascending weight to virtually stop its otvnascent at any desired point, and prevent any strain on the co'rd, except that-produced by the specific gravity of the weight itself. By the use of this invention, allshock or strain o n the eords, pulley's,'or niovements is obviate, except that arising from the simple contact of the \v'inding-stops o and stoppingpawl u,-and this shock or strain is confined-to the shaft-n, stops o, and pawl u, andcannot injurionsly afi'ectcthe clock i n any respect.

Itis evident that this invention-is applicable to either the running, striking, or alarm-machinery ofweightclooks, and that, by its use, the dan'ger ofinjur'ing :t weight-clck-by -n'inding up its weight orw/eightstoo closey and tightly is ohviate, by rencring it almost impossihle to wind the weight or weights too closely and tightly, It is also cyient that the size, lmode: 'of application, and construetion'of nny-weight-cloek winding-is'top, herein deseribe'-lnust 'be governed, to a great extent, by the' size, form, and relative positions of the var'io'us parts ofvthe eloch toiwhich th'e invention is applied. v

My weight-clock winding-'stop'h'erin described can be easily and cheaply constructed, and'readily applied to any of'the ordinary weight-eloeks now in use or being manufactured. I

What'I elaim as my invention, and esire to secure by Letters Patent, is,

` 1; The application of the asee'ning motion of the weights of weight-clocks, when such weights ore being wonnd up, to the stopping of the wining of the clock at any esiredpoint in the ascent of the xveights, for the purposes speeified.

2.. The construction and application of-a` weight-clock winding-stop,.operate by the oscendng motion. of the clock-weights when they are being wounnp, suhstantially in the manner and for the purposes described and illustra'te; v

3. The eomhination and arrangement of 'the elevatin'g-ro e, the connectin'g-rod r, the stops o, when usedin connection with the wini'ng-shaftn and weight W, in the m the' purposes mentioned.

the stopping-pawl 10, and anner clescribed.'an for r O. ,HL WOODWORTH. 'Witnesses:

' G. A. Srema, R. EB. BLACK. 

